Configuring a GSM (3G) modem on a GW2040 Series Router

Configuring a GSM (3G) modem on a GW2040 Series Router Issue 1.5 Date 10 May 2012

Table of contents 1 About this document... 3 1.1 Scope... 3 1.2 Readership... 3 1.3 More information... 3 1.3.1 Assigned interface number... 3 1.3.2 References to GSM (3G)... 3 1.4 Terminology... 3 1.5 Prerequisites... 3 1.5.1 Inserting the SIM card... 3 1.5.2 Internet Service Provider details... 4 2 Introduction... 5 2.1 3G overview... 5 2.2 Typical uses of the GSM (3G) modem... 5 2.3 Types of data bearers that the GSM (3G) modem supports... 6 2.3.1 GPRS... 6 2.3.2 HSDPA... 6 2.3.3 HSUPA... 6 2.3.4 UMTS... 6 2.3.5 Edge... 6 3 Configuring the GW2040 series... 7 4 Setting up the GSM (3G) modem for a primary WAN link... 8 4.1 PPP layer structure... 8 4.2 Configuring the GW2040 series to use the GSM (3G) modem interface.. 8 4.2.1 Configure the GSM (3G) modem and APN... 9 4.2.2 Configure the IP default route...10 4.2.3 Configure the PPP interface...12 4.2.4 Configure the IP interface...13 4.2.5 Configure address translation...15 4.2.6 Configure IPCP options...15 4.2.7 Select asynchronous PPP operation...19 4.2.8 Configure 3G Username and Password...20 4.2.9 Set dialling options for GSM only...24 4.2.10 Configure the modem interface...25 4.2.11 Save the configuration...26 4.2.12 Reload the configuration...27 5 Performing GSM (3G) monitoring and diagnostics... 28 5.1 View the connection monitor... 28 5.1.1 Call history...28 5.1.2 Active data connections...30 5.1.3 Trace analyzer...30 5.1.4 Modem statistics and signal quality...33 Copyright 2011 Virtual Access (Irl) Ltd. This material is protected by copyright. No part of this material may be reproduced, distributed, or altered without the written consent of Virtual Access. All rights reserved. Third party trademarks are the property of the third parties. Issue: 1.5 Page 2 of 34

1: About this document 1 About this document 1.1 Scope This configuration guide explains how to set up and configure a primary link using the GSM (3G) modem on a GW2040 Series router. 1.2 Readership This document is for engineers who have previous experience configuring and managing GW Series routers. 1.3 More information 1.3.1 Assigned interface number Throughout this guide we have used ppp-2 as the assigned interface number. You can configure any PPP interface number for connections. For example, ppp-1 could be substituted for each ppp-2 task covered in this document. 1.3.2 References to GSM (3G) The GW2040 web interface refers to GSM, not 3G, so screen grabs of the web interface will vary. 1.4 Terminology Abbreviation APN GSM HSDPA UMTS EDGE Description Access Point Name Global System for Mobile communications High-Speed Downlink Packet Access Universal Mobile Telecommunications System Enhanced Data rates for GSM Evolution 1.5 Prerequisites 1.5.1 Inserting the SIM card Ensure the unit is powered off. Hold the SIM card with the chip side facing down and the cut corner top left. Gently push the SIM card into SIM slot 1 until it clicks in. To remove the SIM card, gently push the SIM card. The card will click out. WARNING The SIM card MUST be inserted into the SMG before the unit is powered on. Issue: 1.5 Page 3 of 34

1: About this document Do not insert or remove the SIM card after the unit has been powered on. 1.5.2 Internet Service Provider details Before you configure the GSM (3G) modem, check with your Internet Service Provider for the following information: Number Username and password PIN PUK, and Access Point Name Issue: 1.5 Page 4 of 34

2: Introduction 2 Introduction 2.1 3G overview 3G is the third generation of mobile phone standards and technology. It is based on the International Telecommunication Union (ITU) family of standards under the International Mobile Telecommunications programme, IMT-2000. 3G technologies enable network operators to offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency. Services include wide-area wireless voice telephony, video calls, and broadband wireless data, all in a mobile environment. The GW2040 Series router contains a GSM (Global System for Mobile communications) 3G wireless modem. The modem in connection with a SIM card establishes a WAN connection to the Internet. The GW2040 Series router supports a maximum download speed of 7.2 Mbps and a maximum upload speed of 384 kbps. 2.2 Typical uses of the GSM (3G) modem You can use the GSM (3G) modem on the GW2040 Series in two ways. You can create a primary WAN link over the GSM (3G) modem. Figure 1: A primary WAN link over the 3G modem You can use the GSM (3G) modem as a backup WAN link. If the primary interface link fails, the GW2040 Series router uses its GSM (3G) modem to automatically route traffic across the Internet via its alternative interface. This set up is not covered in this document. For further information contact Virtual Access. Issue: 1.5 Page 5 of 34

2: Introduction Figure 2: A primary link using the 3G modem on the GW2040 series router 2.3 Types of data bearers that the GSM (3G) modem supports Data bearers are frame protocols that transport data streams. The GSM (3G) modem supports GPRS, HSDPA, and CSD. 2.3.1 GPRS GPRS (General Packet Radio Service) uses packet-switched technology to transmit small bursts of data. The maximum data rate available to the 3G modem depends on provisioning by the network operator. 2.3.2 HSDPA HSDPA (High-Speed Downlink Packet Access) uses circuit-switched technology to transmit data at speeds of up to 7.2Mbps. 2.3.3 HSUPA HSUPA (High-Speed Uplink Packet Access) is a 3G mobile telephony protocol with up link speeds of 5.76Mbps. 2.3.4 UMTS UMTS (Universal Mobile Telecommunications System) is a 3rd generation technology providing higher transfer rates. 2.3.5 Edge Edge uses the same frequencies as GPRS but offers better speeds. It is used when the signal strength for 3G is not sufficient. Issue: 1.5 Page 6 of 34

3: Configuring the 3 Configuring the GW2040 series The GW2040 Series contains an internal web server that is used to configure the router. Before you can access the internal web server and start the configuration, you must ensure that your PC has the correct networking set up. When your GW2040 Series router is correctly connected to your PC, type fast.start into the URL line of your browser to display the start page. Alternatively, you can type in the IP address of the gateway. Figure 3: The GW2040 series web interface start page If a login page appears type in the login password you received from your administrator. If you have not received a password, contact the Virtual Access Support team. Access the Fast Start Wizard by clicking the Fast.Start icon on the start page of the embedded web. The Fast Start Wizard will guide you through a series of forms that you must complete to configure your GW2040 Series router. Issue: 1.5 Page 7 of 34

4 Setting up the GSM (3G) modem for a primary WAN link 4.1 PPP layer structure Figure 4 shows the PPP layer structure required to configure a primary WAN link. Figure 4: PPP layer structure 4.2 Configuring the GW2040 series to use the GSM (3G) modem interface To configure the GW2040 Series to use the GSM (3G) modem interface, follow the steps in sections 4.2.1 to 4.2.10. You do not have to save each configuration until you have updated all your settings. When you have completed all your configuration changes, you must save the configuration as described in section 4.2.11. Issue: 1.5 Page 8 of 34

4.2.1 Configure the GSM (3G) modem and APN Set up the GSM (3G) modem for a primary WAN link in the Expert View of the Advanced section of the web of the GW2040 Series router. On the Start page, click Advanced. In the Advanced menu, click Expert View. In the Expert View menu, select interfaces -> modem-0 -> gsm. The Modem Interface GSM page appears. Click Advanced to view advanced options. Figure 5: The GSM on modem page Set Access Point Name, PIN, PIN2, PUK, and PUK2 according to your ISP settings. APN (Access Point Name) PIN PIN2 PUK Field name Description Command line Set Modem Interface Gsm Apn For GPRS operation only. An access point name is given by a network operator for connection into the GPRS network. Enter your service provider s Access Point Name (APN). <SIM PIN number>. This may or may not be required, depending on SIM card type. Check with your service provider. <SIM PIN2 number>. This may or may not be required, depending on SIM card type. Check with your service provider. <SIM personal unlock key>. This may or may not be required, depending on SIM card type. Check with your service provider. Set Modem Interface Gsm Pin Set Modem Interface Gsm Pin2 Set Modem Interface Gsm Puk PUK2 <SIM personal unlock key 2>. This Set Modem Interface Gsm Puk2 Issue: 1.5 Page 9 of 34

Radio Access Technology Mode may or may not be required, depending on SIM card type. Check with your service provider. 2G=GSM, 3G=UTMS, Auto sets to 3G. If there is no 3G access, radio access automatically defaults to 2G. Set Radio Access to auto. Set Modem Interface Gsm Rat Table 1: GSM on modem-0 fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. You do not have to save your configurations until you have updated all your settings. 4.2.2 Configure the IP default route In the Expert View menu, select system -> ip -> ip routing -> default routes list. The IP Default Routes List page appears. Figure 6: The IP default routes list page In the Operation column, click add in the Index 1 row. The IP Default Routes Entry page appears. Issue: 1.5 Page 10 of 34

Figure 7: The IP default routes entry page Field name Description Command line Configured Enables or disables the default route. Set Ip Route Default Configured Set Configured to Yes Route Type Indicates whether the route type is Ip Route Default Indexed over a numbered or unnumbered Numbered link. A numbered link is a link that has been assigned an IP address. Numbered Route Next Hop IP Unnumbered Route Next Hop Interface Metric Set Route Type to unnumbered. If you have set Route Type to numbered, enter the IP address, in dotted-decimal notation, of an adjacent router to which to send traffic when a route to a destination is not known by the local device. If you have set Route Type to unnumbered, select the interface that provides a connection to the next hop router. Set the Next Hop Interface to one of the options from the drop down list. Defines the RIP metric for the route. Minimum Value 1 Default 1 Ip Route Default Indexed Next Hop Ip Ip Route Default Indexed Next Hop Interface Ip Route Default Indexed Metric Issue: 1.5 Page 11 of 34

Last Resort Value Maximum Value Units 15 Unspecified Specifies that the route is to be used only if all others are down. Usually used with a route that is slow or expensive, or both. Ip Route Default Indexed Last Resort Table 2: The IP default route entry page fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. 4.2.3 Configure the PPP interface The GSM (3G) modem uses the modem-0 interface, so you must configure ppp-2 to send and receive data using the modem-0 interface. In the Expert View menu, select interfaces -> ppp-2 -> wan interface. The PPP WAN Interface page appears. Figure 8: The WAN interface page On the PPP WAN Interface on ppp-2 page, select Modem -0 from the Wan Interface drop-down list. Field name Description Command line WAN Interface Defines the connection type on the Ppp Interface Wan PPP WAN interface. Interface Table 3: The PPP WAN interface field, its description and command line Click Update. The Configuration Update Result page appears. Issue: 1.5 Page 12 of 34

4.2.4 Configure the IP interface To configure the IP interface, in the Expert View menu, select interfaces -> ppp-2 -> ip -> ip. The IP Interface page appears. Figure 9: The IP interface on ppp-2 page Field name Description Command line Enables or disables IP operation on Set Ip Interface the selected interface. Type IP Address Set to yes. Select one of the following options to define the point to point link associated with the PPP interface as operating in unnumbered IP mode or numbered IP mode. numbered unnumbered Configures an IP point to point link for numbered operation. Default. Configures an IP point to point link for numberless or unnumbered operation. Note: when an interface is defined as unnumbered, the IP Address field for the interfaces(s) must be set to 0.0.0.0. Set to unnumbered. Enter the IP address, in dotted decimal notation, to be assigned to the selected interface. This field and the Mask provide the Set Ip Interface Unnumbered Link Set Ip Interface Address Issue: 1.5 Page 13 of 34

Mask Remote IP Address Remote Mask MTU BOOTP enabled network and host identification. This configuration change does not take effect until the device reboots. Note: When the interface is defined as unnumbered, this field must be set to 0.0.0.0 Set IP Address to 0.0.0.0. Enter the subnet mask, in dotted decimal notation, to be assigned to the selected interface. The subnet mask is used to determine the network and host ID from the IP address and is based on the network class. Set Mask to 255. 255. 255. 0. Enter the IP address of the peer at the opposite end of the point to point link associated with the selected interface. The IP router process establishes a host route to the end point of each point to point link based on the remote address. Remote IP Address to 0.0.0.0. Specify the subnetwork mask, in dotted decimal notation, to be associated with the remote end point of an unnumbered IP link. Remote Mask to 255.255.255.0 Enter the size, in bytes, of the largest IP datagram that can be sent by the selected interface. The MTU value includes the data link header, IP header, and IP data field. Minimum Value Default Value Maximum Value Units Set MTU to 1500 64 1500 1500 Bytes This option is used to enable or disable BOOTP on the selected interface. yes no Enables BOOTP Disables BOOTP Set BOOT enabled to no. Set Ip Interface Address Mask Set Ip Interface Remote Address Set Ip Interface Remote Mask Set Ip Interface Mtu Set Ip Interface Bootp Table 4: The IP interface on ppp-2 fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. Issue: 1.5 Page 14 of 34

4.2.5 Configure address translation In the Expert View menu, select interfaces -> ppp-2 -> ip -> address translation -> outgoing. The Outgoing Address Translation page appears. Figure 10: The outgoing address translation page Field name Description Command line Enables or disables the translation of Ip Address Translation outgoing IP datagrams on this Interface interface. Yes no Enables translation of outgoing IP datagrams on the selected interface. Disables translation of outgoing IP datagrams on the selected interface. Table 5: The outgoing address translation on ppp-2 field, its description and command line On the Outgoing Address Translation page, set to no when using a routing protocol such as RIP or BGP. Click Update. The Configuration Update Result page appears. 4.2.6 Configure IPCP options In the Expert View menu, select interfaces ->ppp-1 ->ip->ipcp options->local address. The Local IP Address Negotiation page appears. Issue: 1.5 Page 15 of 34

Figure 11: The local IP address page Field name Description Command line Required Negotiable IP Address Enables or disables the IP address negotiation on the local end of the link. Set to yes. Specifies whether or not negotiation of the local IP address is required. Set Required to no. Indicates whether the IP address is negotiable or not negotiable. Negotiable to yes. If negotiation is enabled, enter the IP address to use for local IP address negotiation. Enter the IP address in dotted decimal notation. Set IP Address to 0.0.0.0 Set Ppp Interface Local Option Ipcp Address Set Ppp Interface Local Option Ipcp Address Negotiation Required Ppp Interface Local Option Ipcp Address Negotiable Ppp Interface Local Option Ipcp Address Value Table 6: The local IP address fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. In the Expert View menu, select interfaces ->ppp-1 -> ip -> ipcp options-> local primary dns. The Local Primary DNS page appears. Issue: 1.5 Page 16 of 34

Figure 12: The local primary DNS negotiation on ppp-2 page Field name Description Command line Enables or disables negotiation of the Set Ppp Interface Local primary DNS IP address on the local Option Ipcp Primary Dns end of the link. Address Required Negotiable IP Address Set to yes. Enables or disables primary DNS negotiation on the local end of the link. Set Required to no. Indicates whether primary DNS negotiation is negotiable or not negotiable by the local end of the link. Negotiable to yes. Enter the IP address of the primary DNS server to be used by the local end of the link. Setting the IP address to 0.0.0.0 is an explicit request that the remote end provides the address information. Address to 0.0.0.0. Set Ppp Interface Local Option Ipcp Primary Dns Address Negotiation Required Set Ppp Interface Local Option Ipcp Primary Dns Address Negotiable Set Ppp Interface Local Option Ipcp Primary Dns Address Value Table 7: The local primary DNS fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. In the Expert View menu, select interfaces ->ppp-2 ->ip->ipcp options->local secondary dns. The Local Secondary DNS Negotiation page appears. Issue: 1.5 Page 17 of 34

Figure 13: The local secondary DNS negotiation on ppp-2 page Field name Description Command line Required Negotiable IP Address Enables or disables negotiation of the primary DNS IP address on the local end of the link. Set to yes. Enables or disables primary DNS negotiation on the local end of the link. Set Required to no. Indicates whether primary DNS negotiation is negotiable or not negotiable by the local end of the link. Negotiable to yes. Enter the IP address of the primary DNS server to be used by the local end of the link. Setting the IP address to 0.0.0.0 is an explicit request that the remote end provides the address information. Set Address to 0.0.0.0 Set Ppp Interface Local Option Ipcp Secondary Dns Address Set Ppp Interface Local Option Ipcp Secondary Dns Address Negotiation Required Set Ppp Interface Local Option Ipcp Secondary Dns Address Negotiable Set Ppp Interface Local Option Ipcp Secondary Dns Address Value Figure 14: The secondary DNS fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. Issue: 1.5 Page 18 of 34

4.2.7 Select asynchronous PPP operation All PPP interfaces by default are configured for synchronous data transfer. The GSM (3G) modem however uses asynchronous data transfer so you must configure the PPP interface to operate asynchronously. In the Expert View menu, select interfaces -> ppp-1 -> ppp -> ppp. The PPP Interface page appears. Click Advanced to view advanced options. Figure 15: The PPP interface page Set to yes, and set Asychronous Link to yes. You can leave all other settings at their default values. Field name Configuration Command line Enables the ppp-2 interface. Set Ppp Interface Maximum Receive Unit (MRU) Maximum Remote Receive Unit The SMG sends the MRU to the end device or peer to inform it that the router can receive larger packets, or to request that the peer send smaller packets. Enter the MRU for the specified PPP interface. Minimum value is 512 bytes. Default/Maximum value is 1524 bytes. The peer sends the Maximum Remote Receive Unit (MRRU) to the SMG to inform it that the remote router can receive larger packets, or to request Set Ppp Interface Maximum Receive Unit Set Ppp Interface Maximum Remote Receive Unit Issue: 1.5 Page 19 of 34

Period Authentication Timer that the peer send smaller packets. Enter the MRRU for the specified PPP interface. Minimum value is 512 bytes. Default/Maximum value is 1524 bytes. Indicates the length of time, up to 3600 seconds, between successive attempts to authenticate the PPP peer associated with the selected PPP interface. Set Ppp Interface Periodic Authentication Timer Set Ppp Interface Maximum Number Of Authentication Retries Maximum Authentication Retries Indicates the maximum number of authentication retries after the first authentication attempt fails. When the maximum number of retries is exceeded, the connection is terminated on the selected PPP interface. The maximum number of retries allowed is 64; the default is 3. Minimum value is 0 and maximum value is 64. IP Enables IP on the interface. Set Ppp Interface Ip Bridging Time to Send LQR Send Time Remaining Send Identifier String Identifier String Asynchronous Link Primary DNS IP Address Secondary DNS IP Address Enables or disables bridging negotiation and operation on the selected PPP interface. Indicates the length of time in seconds to send the LQR. The maximum allowed is 3600 seconds; the default is 0 seconds. Enables or disables the option to send a notice indicating the amount of time remaining for the connection on the selected interface. Enables or disables the option to send an identifier string on the selected interface. When this option is enabled, enter the identifier string in the Identifier String field. Used to enter the identifier string when Send Identifier String is set to yes. Enables the interface to communicate in asynchronous mode. Address of the primary DNS server. Address of the secondary DNS server. Set Ppp Interface Stp Set Ppp Interface Time To Send Lqr Set Ppp Interface Send Time Remaining Set Ppp Interface Send Identifier String Set Ppp Interface Identifier String Set Ppp Interface Asynchronous Link Set Ppp Interface Dns Ip Address Set Ppp Interface Secondary Dns Ip Address Table 8: The PPP Interface fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. 4.2.8 Configure 3G Username and Password Access to each PPP interface can be restricted, based on a username and password. The username and password for the local interface are entered in the Local Username and Issue: 1.5 Page 20 of 34

Local Password fields. In some cases, the remote end of the connection may also require a username and password for authentication. The username and password for the remote end are entered in the Remote Username and Remote Password fields. Note: Password validation does not require a minimum length or the use of numeric characters. In the Expert View menu, select interfaces -> ppp-2 -> ppp -> authentication -> name and password. The Username and Password page appears. Figure 16: The username and password page On the name and password page, set the local username and password. Field name Description Command line Local Username Enter an ASCII string for the Set Ppp Interface User authentication user name on the Name selected PPP interface. This username is used in PAP and CHAP security. Local Password Local Password Confirm Option Minimum length Default Value Maximum length Units Description 0 Unspecified 63 Unspecified Enter an ASCII string for the authentication user password on the selected PPP interface. To ensure security, the password is displayed with asterisks (*) replacing the actual characters. The password is used in PAP and CHAP security. Retype the ASCII string for the authentication user password on the selected PPP interface. Remote Username Option Description Minimum length Default Value 0 Maximum 63 Unspecified Set Ppp Interface User Encrypted Password Set Ppp Interface Remote User Name Issue: 1.5 Page 21 of 34

Remote Password Remote Password Confirm length Units Unspecified Enter an ASCII string for the remote authentication user password. Re-type the ASCII string for the authentication user password on the selected PPP interface. Set Ppp Interface Remote User Encrypted Password Table 9: The username and password fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. The Send PAP Password on ppp form is used to indicate whether or not to send the Password Authentication Protocol (PAP) password in response to a request. In the Expert View menu, select interfaces -> ppp-2 -> ppp->authentication->send PAP. The Send PAP Password page appears. Figure 17: The send PAP password page On the Send PAP page, set enabled to yes, required to no, and Negotiable to yes. Field name Description Command line Enables or disables sending the PAP Ppp Interface Remote password in response to a PAP Option Pap password validation request on the interface. Option yes Description Enables sending PAP Issue: 1.5 Page 22 of 34

Required Negotiable no Disables sending PAP Specifies whether or not the PAP password should be sent in response to a request. Option yes no Description Enables sending PAP in response to a request. Disables sending PAP in response to a request. Specifies whether or not sending the PAP password is negotiable. Option yes no Description Enables sending PAP is negotiable. Disables sending PAP is not negotiable. Ppp Interface Remote Option Pap Negotiation Required Ppp Interface Remote Option Pap Negotiable Table 10: The send PAP password on ppp fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. In the Expert View menu, select interfaces -> ppp-2 -> ppp->authentication- >Send CHAP. The Send CHAP Password page appears. Figure 18: The send CHAP password on ppp-2 page On the Send CHAP page, set enabled to yes, required to no, and Negotiable to yes. Click Update. The Configuration Update Result page appears. Issue: 1.5 Page 23 of 34

4.2.9 Set dialling options for GSM only In the Expert View menu, select interfaces -> ppp-2 -> call control -> call. The Call Details page appears. Figure 19: The call details on ppp-2 page Field name Configuration Command line Set Dial Neighbour Originate Address Outgoing Call Destination Number Outgoing Call Destination Subaddress Incoming Call Remote Number Enter the ISP number to call to establish a connection to the Internet. Normally,*99# string is valid. Check with your ISP to confirm. Specifies the device s subaddress, or extension, if the call destination device has a subaddress defined. No spaces are allowed. Specifies the number of one of the locations that is allowed to place calls on this interface. No spaces are allowed. Set Dial Neighbour Originate Subaddress Set Dial Neighbour Answer Address Incoming Call Specifies the device s local subaddress, Set Dial Neighbour Local Number or extension, if the call source has a Received Called Address subaddress defined. No spaces are allowed. ISDN Call Type If using ISDN, defines the call type. Set Dial Neighbour Call Permissions Auto Connect Assigns the dial permissions to call, answer, call and answer, call back, or CLI auto answer. Allows the GSM (3G) modem to bring up the link automatically when the GW2040 is restarted. Type Set Dial Neighbour Permission Set Dial Neighbour Call Autoconnect Issue: 1.5 Page 24 of 34

Inactivity Timer Minimum Duration Maximum Duration Period of inactivity elapsed before the call connection is disconnected. Minimum connection time before the inactivity timer becomes active. Maximum time that the connection should be maintained. Set Dial Neighbour Inactivity Timer Set Dial Neighbour Minimum Duration Set Dial Neighbour Maximum Duration Table 11: The call details fields, their descriptions and command lines On the Call Details page, enter the number for the GSM (3G) modem to connect to. Normally, *99# is a valid string. Ensure that Permissions is set to call. Click Update. The Configuration Update Result page appears. 4.2.10 Configure the modem interface In the Expert View menu, select interfaces -> modem-0 -> modem interface. The Modem Interface page appears. The modem is set to US country code by default. To change the required country code, on the Modem Interface on modem-0 page, click Advanced. Set to yes. Figure 20: The modem interface page Issue: 1.5 Page 25 of 34

To set the appropriate country code, type in boot initialised string using the country code shown in Table 12. Use ; (semi-colon) to separate multiple commands. Field name Description Command line Specifies if the modem interface is enabled. Set Modem Interface Set to yes. Boot Initialisation Defines an initialisation string that is sent to Set Modem Interface String the modem on boot. Boot Initialization String US value Default UK value Japan value at+gci=b4; at+gci=00; Multiple at+gci=b4;+vcid=1;v0w2e0 command example Full Duplex or disable full duplex on modem. Set Modem Interface Fullduplex Tone Dial Enables or disable dial tone. Set Modem Interface Tone Dial Table 12: The modem interface on modem-0 fields, their descriptions and command lines Click Update. The Configuration Update Result page appears. 4.2.11 Save the configuration In the Configuration Update Result page, click Save to flash. Figure 21: The configuration update results page The Save Configuration to Flash page appears. Issue: 1.5 Page 26 of 34

Figure 22: The save configuration to flash page In the drop-down menu select the Config you want to save changes to and click Save. There are 3 options to save to: Config 1 Config 2 Alternate Config It is good practice to save to Alternate Config in case your committed configurations are unsuccessful. If you select a different configuration option to the existing configuration, you will need to change the Boot Config to reload into the correct configuration. 4.2.12 Reload the configuration In the Expert View menu, select set boot configuration. In the drop-down menu, select the Config option you have chosen to save to. Click Select. Figure 23: The next boot configuration page Issue: 1.5 Page 27 of 34

5: Performing GSM (3G) monitoring and diagnostics 5 Performing GSM (3G) monitoring and diagnostics The GW2040 Series router supports extensive remote diagnostics, status and appliance monitoring capabilities. The status and diagnostics tools are provided as a series of Java applets. 5.1 View the connection monitor To access Monitor, in the Advanced menu, click Connection Monitor. The GSM (3G) modem interface is shown as MODEM on the Connection Monitor interface. Figure 24: The connection monitor interface 5.1.1 Call history The Call History page gives a history of GSM (3G) connectivity over a number of days. You can use the zoom facility to view detailed information for any hour during that period. In the Status menu, click Call History. The Call History applet appears. Issue: 1.5 Page 28 of 34

5: Performing GSM (3G) monitoring and diagnostics Figure 25: The call history applet Field name Interface Title Duration Connect Disconnect Channel Called No Source IP Destination Protocol Data In Data Out PPP interface number. Configuration Descriptive name of the PPP interface. Call duration. Connect time. Disconnect time. Physical channel name modem-0 is used for GSM (3G) modem. Called ISP phone number (not shown in case of GPRS mode connection). Source IP address of the packet that caused the router to bring up this call. Destination IP address of the packet that caused the router to bring up call. Protocol carried by the IP packet that caused the router to bring up this call. Number of data bytes and packets received on this call. Number of data bytes and packets transmitted on this call. Table 13: Outgoing data call box fields Command line: show call history Figure 26: Output from the command line show call history Issue: 1.5 Page 29 of 34

5: Performing GSM (3G) monitoring and diagnostics 5.1.2 Active data connections The Active Data Connection page shows the type of connection IP address and data uptime duration. In the Status menu, click Active Data Connections. The Active Data Connections applet appears. Figure 27: The active data connections applet Command line: show active connections Figure 28: Output from the command line show active connections 5.1.3 Trace analyzer The Trace Analyzer provides a web interface to event tracing allowing you to quickly locate and analyze problems. To view the Trace Analyzer, from the web interface Start page, click Advanced. In the Advanced menu, click Diagnostics. On the Diagnostics page, click Trace Analyzer. The Trace Analyzer pop-up window appears. Issue: 1.5 Page 30 of 34

5: Performing GSM (3G) monitoring and diagnostics Figure 29: The trace analyzer page To trace modem events, check Custom Events and then click Select. The Select Events to Trace pop-up window appears. In the Select Event Classes to Trace dialog box, add Modem to the list of selected events. Issue: 1.5 Page 31 of 34

5: Performing GSM (3G) monitoring and diagnostics Click OK. Figure 30: The select event class pop-up window In the Trace Analyzer window, click Start Trace. The modem call events display in the trace analyzer window. Figure 31 shows the type of events that will display when the GSM (3G) modem establishes a link with the ISP. For a full list of GSM modem events, see Table 14. Figure 31: The trace analyzer event log Issue: 1.5 Page 32 of 34

5: Performing GSM (3G) monitoring and diagnostics Command Action performed by command ++modem Starts tracing modem events - (minus sign) Stops modem tracing. Severity Text Description INFO Modem: Dial (<called number>) Outgoing GSM (3G) modem call in progress to called number. DEBUG Modem: error creating timer Debug messages logged if GSM driver failed to allocate memory for internal timer. NOTICE Modem: Dial Failed (outgoing calls not allowed) Call permissions does not allow dial-out. NOTICE Modem: Dial Failed (no number configured) No destination number is configured. INFO Modem: Outgoing Call Connected (<speed>) Outgoing GSM connection established. INFO Modem: Disconnected GSM (3G) modem disconnected. INFO Modem: SIM READY SIM status is ready for operation, no PIN is necessary. INFO Modem: SIM PIN2? SIM is present, but PIN2 is required. INFO Modem: SIM PIN? SIM is present, but PIN is required. INFO MODEM: SIM PUK2? SIM is present, but PUK2 is required. INFO MODEM: SIM PUK? SIM is present, but PUK is required. INFO MODEM: REGISTERED TO NTWK GSM (3G) modem registered to home network. INFO MODEM: NETWORK NOT FOUND GSM (3G) modem could not find mobile network. INFO MODEM: SEARCHING FOR NTWK GSM (3G) modem is searching for mobile network. INFO MODEM: DENIED NTWK REGISTR. GSM (3G) modem has been denied network registration. INFO MODEM: NTWK STATUS UNKNOWN The status of network registration is unknown. INFO MODEM: REGISTERED ROAMING GSM (3G) modem registered and is roaming on one of the networks. INFO MODEM: Code accepted PIN, PIN2, PUK or PUK2 code accepted. INFO MODEM: Code rejected PIN, PIN2, PUK or PUK2 code rejected. INFO MODEM: Attached to GPRS network GSM (3G) modem attached to GPRS network. INFO MODEM: Connecting GPRS (<APN>) GSM (3G) modem is connecting to GPRS network. INFO MODEM: Outgoing Call Local Disconnect GSM (3G) connection is terminated Table 14: A list of GSM modem events 5.1.4 Modem statistics and signal quality To view modem statistics, from the Start page, click Advanced. In the Advanced menu, click Expert View. In the top menu, click Operations. In the Operations menu, click Performance ->Interface stats -> modem (0). The Statistics for Interface modem page appears. Issue: 1.5 Page 33 of 34

5: Performing GSM (3G) monitoring and diagnostics Figure 25: The statistics for interface modem-0 page Show modem interface type modem -0 Show modem interface gsm technology modem -0 Show modem interface gsm signal quality modem -0 Issue: 1.5 Page 34 of 34